[  503.391410] bond0: (slave eth0): making interface the new active one
[  503.391533] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.592903] bond0: (slave eth0): Releasing backup interface
[  507.671708] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.820416] bond0: (slave eth0): Releasing backup interface
[  511.853288] bond0 (unregistering): Released all slaves